S-DALINAC的最新发展 *
Latest Developments from the S-DALINAC*
摘要：
S-DALINAC是一台130 MeV超导再循环电子加速器，用于多项核物理和辐射物理实验，并驱动红外自由电子激光。建立了一套用于束流位置和电流无创测量的正常传导射频谐振腔系统。为了测量加速器腔室内的γ辐射，已经开发和测试了一个康普顿二极管系统。利用光学渡越辐射光斑的层析重建方法对横向相空间进行了详细的研究。该方法也可以应用于非高斯相空间分布。结果与模拟结果吻合较好。为了提高3 GHz超导腔的品质因数，我们使用了一台2K低温恒温器.目前正在研究电化学抛光和磁屏蔽的影响。为了改善S-DALINAC加速器束流的能散，正在研制加速器腔的数字射频反馈系统。* 由BMBF（合同号：06 DA 820）、DFG（合同号：Ri 242/12-1和-2）和DFG Graduiertenkolleg“Physik und Technik von Beschunigern”提供支持。
英文摘要：
The S-DALINAC is a 130 MeV superconducting recirculating electron accelerator serving several nuclear and radiation physics experiments as well as driving an infrared free-electron laser. A system of normal conducting rf resonators for noninvasive beam position and current measurement was established. For the measurement of gamma-radiation inside the accelerator cave a system of Compton diodes has been developed and tested. Detailed investigations of the transverse phasespace were carried out with a tomographical reconstruction method of optical transition radiation spots. The method can be applied also to non-Gaussian phasespace distributions. The results are in good accordance with simulations. To improve the quality factor of the superconducting 3 GHz cavities, an external 2K testcryostat was commissioned. The influence of electro-chemical polishing and magnetic shielding is currently under investigation. A digital rf-feedback-system for the accelerator cavities is being developed in order to improve the energy spread of the beam of the S-DALINAC. * Supported by the BMBF under contract no. 06 DA 820, the DFG under contract no. Ri 242/12-1 and -2 and the DFG Graduiertenkolleg 'Physik und Technik von Beschleunigern'
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
